20117850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{1889}}^1$

素因数の和:1975

約数の個数: 48

約数和(自身を含む): 50621760

約数和(自身を除く): 30503910

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 71, 75, 142, 150, 213, 355, 426, 710, 1065, 1775, 1889, 2130, 3550, 3778, 5325, 5667, 9445, 10650, 11334, 18890, 28335, 47225, 56670, 94450, 134119, 141675, 268238, 283350, 402357, 670595, 804714, 1341190, 2011785, 3352975, 4023570, 6705950, 10058925, 20117850]

約数ペア:

[(1, 20117850), (2, 10058925), (3, 6705950), (5, 4023570), (6, 3352975), (10, 2011785), (15, 1341190), (25, 804714), (30, 670595), (50, 402357), (71, 283350), (75, 268238), (142, 141675), (150, 134119), (213, 94450), (355, 56670), (426, 47225), (710, 28335), (1065, 18890), (1775, 11334), (1889, 10650), (2130, 9445), (3550, 5667), (3778, 5325)]